Ground fault circuit breaker with mechanical indicator for groun

Details Ground fault circuit breaker with mechanical indicator for groun Ground fault circuit breaker with mechanical indicator for groun

1981-04-07

1983-05-03

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific circuit breaker or control structure

335 17, 335 18, 361 45, 340644, 340664, 340650, H02H 3347, H01H 8302

Patent

active

043822703

ABSTRACT:
A ground fault circuit breaker including ground fault interruption means and overload interruption means that are independently responsive to open a common set of breaker contacts upon respective ground fault and overload conditions is provided with a trip indicator visible external to the breaker that operates on actuation of the ground fault interruption means but not upon operation of the overload interruption means, the trip indicator being a mechanical device that is actuated upon the movement of the solenoid plunger that operates upon occurrence of a ground fault condition.

REFERENCES:
patent: 3614533 (1971-10-01), Douglas et al.
patent: 3893052 (1975-07-01), Kotos et al.
patent: 3943409 (1976-03-01), Brown
patent: 4004201 (1977-01-01), DePuy
patent: 4037185 (1977-07-01), Klein
patent: 4068283 (1978-01-01), Russell
patent: 4081852 (1978-03-01), Coley et al.
patent: 4223365 (1980-09-01), Moran
patent: 4250532 (1981-02-01), Davis

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